<template>
    <div>
         <!-- 面包屑导航区 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>商品管理</el-breadcrumb-item>
            <el-breadcrumb-item>商品列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 卡片视图区 -->
        <el-card>
               <el-row  :gutter="20">
                   <el-col :span="8">
                       <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList">
                            <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
                       </el-input>
                   </el-col>
                   <el-col :span="4">
                       <el-button type="primary" @click="goAddPage">添加商品</el-button>
                   </el-col>
               </el-row>
               <!-- table表格区 -->
               <el-table :data="goodslist"
                         style="width: 100%"
                         border
                         stripe>
                 <el-table-column type="index">
                 </el-table-column>
                 <el-table-column label="商品名称" prop="goods_name">
                 </el-table-column>
                 <el-table-column label="商品价格(元)" prop="goods_price" width="95px">
                 </el-table-column>
                 <el-table-column label="商品数量" prop="goods_number" width="70px">
                 </el-table-column>
                 <el-table-column label="创建时间" prop="add_time" width="140px">
                     <template  slot-scope="scope">
                         {{scope.row.add_time | dateFormat}}
                     </template>
                 </el-table-column>
                 <el-table-column label="操作" width="130px">
                     <template  slot-scope="scope">
                         <el-button type="primary" icon="el-icon-edit" size="mini" @click="editGoods(scope.row)"></el-button>
                          <el-button type="danger" icon="el-icon-delete" size="mini" @click="delgoods(scope.row)"></el-button>
                     </template>
                 </el-table-column>
               </el-table>
                <!-- 分页区 -->
                <el-pagination
                  @size-change="handleSizeChange"
                  @current-change="handleCurrentChange"
                  :current-page="queryInfo.pagenum"
                  :page-sizes="[5, 10, 15, 20]"
                  :page-size="queryInfo.pagesize"
                  layout="total, sizes, prev, pager, next, jumper"
                  :total="total" background>
                </el-pagination>
                 <!-- 修改商品框 -->
            <el-dialog
              title="分配角色"
              :visible.sync="editGoodsDialogVisible"
              width="50%">
              <!-- 内容主题区 -->
                <el-form :model="editGoodsForm" :rules="editGoodsRules" ref="editGoodsRef" label-width="80px" :status-icon="true">
                    <el-form-item label="商品名称" prop="goods_name">
                      <el-input v-model="editGoodsForm.goods_name"></el-input>
                    </el-form-item>
                    <el-form-item label="商品价格" prop="goods_price">
                      <el-input v-model="editGoodsForm.goods_price"></el-input>
                    </el-form-item>
                    <el-form-item label="商品数量" prop="goods_number">
                      <el-input v-model="editGoodsForm.goods_number"></el-input>
                    </el-form-item>
                    <el-form-item label="商品重量" prop="goods_weight">
                      <el-input v-model="editGoodsForm.goods_weight"></el-input>
                    </el-form-item>
                </el-form>
              <span slot="footer" class="dialog-footer">
                <el-button @click="editGoodsDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="edits">确 定</el-button>
              </span>
            </el-dialog>
        </el-card>

    </div>
</template>
<script>
export default {
    data() {
        return {
            // 查询参数
            queryInfo: {
                query: '',
                pagenum: 1,
                pagesize: 10
            },
            // 总数据条数
            total: 0,
            // 商品列表
            goodslist: [],
            editGoodsDialogVisible: false,
            editGoodsForm: {
              goods_name: '',
              goods_price: 0,
              goods_number: 0,
              goods_weight: 0
            },
            editGoodsRules: {
                goods_name: [ { required: true, message: '请输入商品名称', trigger: 'blur' } ],
                goods_price: [ { required: true, message: '请输入商品价格', trigger: 'blur' } ],
                goods_number: [ { required: true, message: '请输入商品数量', trigger: 'blur' } ],
                goods_weight: [ { required: true, message: '请输入商品重量', trigger: 'blur' } ]
            }
        }
    },
    created() {
        this.getGoodsList()
    },
    methods: {
        // 获取商品列表数据
       async getGoodsList() {
            const { data: res } = await this.$http.get(`goods`, {
              params: this.queryInfo
            })
              if (res.meta.status !== 200) {
                  return this.$message.error('获取商品列表数据失败')
                }
                this.$message.success('获取商品列表数据成功')
                this.goodslist = res.data.goods
                this.total = res.data.total
        },
        handleSizeChange(newSize) {
            this.queryInfo.pagesize = newSize
            this.getGoodsList()
        },
        handleCurrentChange(newPage) {
            this.queryInfo.pagenum = newPage
            this.getGoodsList()
        },
        // 删除商品功能
        async delgoods(item) {
            const result = await this.$confirm('此操作将永久删除该分类, 是否继续?', '提示', {
               confirmButtonText: '确定',
               cancelButtonText: '取消',
               type: 'warning'
             })
              .catch(err => err)
              if (result !== 'confirm') {
                 return this.$message.info('已取消删除')
             }
             const { data: res } = await this.$http.delete(`goods/${item.goods_id}`)
              if (res.meta.status !== 200) {
                    return this.$message.error('删除商品数据失败')
                }
                this.$message.success('删除商品成功')
                this.getGoodsList()
        },
        goAddPage() {
            this.$router.push('/goods/add')
        },
        // 修改按钮点击事件
       async editGoods(item) {
            const { data: res } = await this.$http.get(`goods/${item.goods_id}`)
            if (res.meta.status !== 200) {
                return this.$message.error('获取商品数据失败')
            }
            this.editGoodsForm = res.data
            this.editGoodsDialogVisible = true
        },
        // 修改表单提交事件
        edits() {
             this.$refs.editGoodsRef.validate(async valid => {
                if (!valid) return
            const { data: res } = await this.$http.put(`goods/${this.editGoodsForm.goods_id}`, this.editGoodsForm)
            if (res.meta.status !== 200) {
                    return this.$message.error('修改商品数据失败')
                }
            this.$message.success('修改商品数据成功')
            this.getGoodsList()
            this.editGoodsDialogVisible = false
               })
        }
    }
}
</script>
<style lang="less" scoped>

</style>